Pokemon Bank and RNG'd or Legal Edited Pokemon

All pokemon caught in pokemon x and y will have a symbol that says you caught in game this info from the dragon tournament in japan this may be the first look at how Nintendo is going to do pokemon bank and future tournaments down the road

Yes we call this a region marker. Many first tournaments of a new generations like the VGC2011 only allowed you to use pokes captured in the region so it would be fair for people who didn't have access to the old games.

Serebii horribly mistranslated the pentagon saying it was a legal check, but in fact, the hexagon was only a marker that stated that the pokemon was captured in pokemon XY.